Display screen or portion thereof with a graphical user interface



FIG. 1 illustrates a front view of an electronic device having a displayscreen, in accordance with a first embodiment.

FIG. 2 illustrates a front view of an electronic device having a displayscreen, in accordance with a second embodiment.

FIG. 3 illustrates a front view of an electronic device having a displayscreen, in accordance with a third embodiment.

FIG. 4 illustrates a front view of an electronic device having a displayscreen, in accordance with a fourth embodiment.

FIG. 5 illustrates a front view of an electronic device having a displayscreen, in accordance with a fifth embodiment; and,

FIG. 6 illustrates a front view of an electronic device having a displayscreen, in accordance with a sixth embodiment.

The outer rectangular broken line in each drawing shows a display screenof an electronic device. The other broken lines showing portions of thegraphical user interface form no part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof witha graphical user interface, as shown and described.